When it comes to Brinkley’s beauty routine, she has found it is easier to keep it simple.

"I tried Botox in the forehead. I'm not a fan. I won't ever do that again," Brinkley admitted to ET. "I didn't like the claustrophobic feeling of not being able to do whatever I want with my eyebrows."

"How you eat and how you exercise, these all play a tremendous role in how you feel, and therefore, how you look," Brinkley added. "And a smile will give your face an instant lift and it also releases endorphins."